body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background: url(./15798824325386560.png) no-repeat center 0px;
    background-size: cover;
    background-position: center 0;
    background-repeat: no-repeat;
    background-attachment: fixed;
    -webkit-background-size: cover;
    -o-background-size: cover;
    -moz-background-size: cover;
    -ms-background-size: cover;
}
div {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    padding: 40px;
    background: rgba(172, 171, 171, 0.8);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0, 0, 0, .5);
    border-radius: 10px;
}
div li {
    text-align: center;
    list-style: none;
}
img{
    width: 200px;
    height: 100px;
}